National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Snow in the Cascades and Northern Rockies; Wintry Mix in the Northeast; High Winds in Southern California

Two more cold fronts will pass through the Northwest U.S. this week with heavy mountain snow continuing across the Cascades, and northern Rockies. A quick moving storm system will bring mixed precipitation including some freezing rain across the Northeast U.S. today. High winds could blow down trees and power lines in the mountains of southern California this evening through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Concord, Buchanan Field (KCCR)

Lat: 37.99167°NLon: 122.05194°WElev: 23.0ft.

Clear

61°F

16°C

Humidity 55%
Wind Speed W 13 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 07 Jan 02:00 PM PST
Extended Forecast for

4 Miles E Hercules CA

Extreme Cold Watch January 9, 01:00am until January 9, 09:00am
Click here for hazard details and duration
Extreme Cold Watch

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 56. West wind around 13 mph, with gusts as high as 20 mph.

    High: 56 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 41. West northwest wind around 15 mph, with gusts as high as 24 mph.

    Low: 41 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 52. North wind around 11 mph, with gusts as high as 18 mph.

    High: 52 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 38. North northeast wind around 9 mph.

    Low: 38 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 49. East northeast wind 10 to 13 mph, with gusts as high as 18 mph.

    High: 49 °F

    Sunny

  • Friday Night

    Friday Night: Patchy frost after 2am. Otherwise, partly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Clear
    then Patchy
    Frost

  • Saturday

    Saturday: Areas of frost before 7am. Otherwise, partly sunny, with a high near 51.

    High: 51 °F

    Areas Frost
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 52.

    High: 52 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 56. West wind around 13 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 41. West northwest wind around 15 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 52. North wind around 11 mph, with gusts as high as 18 mph.
Thursday Night
Partly cloudy, with a low around 38. North northeast wind around 9 mph.
Friday
Sunny, with a high near 49. East northeast wind 10 to 13 mph, with gusts as high as 18 mph.
Friday Night
Patchy frost after 2am. Otherwise, partly cloudy, with a low around 35.
Saturday
Areas of frost before 7am. Otherwise, partly sunny, with a high near 51.
Saturday Night
Mostly cloudy, with a low around 37.
Sunday
Mostly cloudy, with a high near 52.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Sunny, with a high near 54.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Mostly sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Hercules CA
 38.01°N 122.18°W (Elev. 597 ft)
Last Update:
12:26 pm PST Jan 7, 2026
Forecast Valid:
2pm PST Jan 7, 2026-6pm PST Jan 13, 2026
 
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Additional Resources

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Chance of Precipitation